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About Riff
Riff is a free Chrome extension that drafts social media replies, posts, and DMs on X, LinkedIn, Facebook, and Instagram. Drafts are written on-device with Chrome's built-in Gemini Nano, so nothing leaves your computer. No account and no API key needed.
Updated 10/22/2026
Key Features
- On-device drafting with Chrome's built-in Gemini Nano — nothing leaves your computer
- Replies, comments, DMs, and new posts on X, LinkedIn, Facebook, and Instagram
- Reads post context and full conversations before drafting
- Tone and style dials — adjust smartness, salesiness, and adventurousness
- One-click rewrites — shorter, punchier, softer pitch, bolder, more human
- Brand voices and presets — save tone, format, hashtags, and hooks per client or campaign
- Repurpose across sites — one draft refitted for LinkedIn, X thread, or Instagram caption
- Thread mode — split a post into a numbered X thread automatically
Pricing Structure
- Free — $0/month — All features; no account or subscription required.
Why People Use It
Riff is useful for anyone who manages social presence across multiple platforms and wants to keep drafting private. Because it runs on Gemini Nano inside Chrome, there are no API keys, no server round-trips, and no subscription. Users get instant drafts that match each platform's tone and character limits, with the ability to tweak tone, repurpose content, and maintain brand voices without leaving their browser.
See Riff in Action
